Good day, and welcome to the InterDigital First Quarter 2021 Earnings Call. [Operator Instruction] At this time, I would like to turn the conference over to Ms. Tiziana Figliolia. Please go ahead. Tiziana Figliolia -- Vice President of Finance and Investor Relations Good morning to everyone, and welcome to InterDigital's first quarter 2021 earnings conference call. I'm Tiziana Figliolia, Vice President of Finance and Investor Relations. And with me today's meeting are Liren Chen, our President and CEO; and Rich Brezski, our CFO. Consistent with last quarter's call, we will offer some highlights about the quarter and the company. And then open the call up for questions.